Hi BrianT,

I have recently been reading the datasheets on the 18F2420 with regard to power modes and battery power. it is something I have not done before.

I thought I might start experimenting with a lower class of chip with less features to help me understand how the different power features work. but in the back of my mind I keep thinking why should i use the BOD feature in the chip and not implement an external power monitor circuit, and convey the info to the MCU, possibly to prevent writing to the external eeprom.

I am waaay behind you though, just sharing a first few thoughts.


Duncan